CN102953389A - Novel side slope retainer anchor anti-sliding pile - Google Patents
Novel side slope retainer anchor anti-sliding pile Download PDFInfo
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- CN102953389A CN102953389A CN2012104400625A CN201210440062A CN102953389A CN 102953389 A CN102953389 A CN 102953389A CN 2012104400625 A CN2012104400625 A CN 2012104400625A CN 201210440062 A CN201210440062 A CN 201210440062A CN 102953389 A CN102953389 A CN 102953389A
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Abstract
The invention discloses a novel side slope retainer anchor anti-sliding pile, which comprises a cylindrical pile body and is characterized in that a cylindrical cavity is arranged in the pile body, a plurality of water filtering holes are uniformly distributed in the axial direction of the pipe body, a water discharge pipe is arranged in the cylindrical cavity, broken stone is filled at the gap part of the cylindrical cavity, a water outlet of the water discharge pipe is connected with an external vacuum pump, the novel side slope retainer anchor anti-sliding pile also comprises an anchor rod body with the round cross section, the anchor rod body passes through the pile body, an included angle between the anchor rod body and the pile body is 15 to 25 DEG C, the anchor rod body comprises a plurality of sections of coaxially and integrally formed rod body sections, and the diameter of the rod body sections is sequentially reduced from the rod head of the rod body to the rod tail. The novel side slope retainer anchor anti-sliding pile has the advantages that the anti-sliding effect and the water discharge are integrated, in addition, the bending resistance intensity is improved, and meanwhile, the bite force and the friction force between the anchor rod and the mortar are improved.
Description
Technical field
The present invention relates to a kind of pile body for building, especially relate to a kind of novel slope supporting anchor and draw antislide pile.
Background technology
China is the country on mountain more than on the whole, especially in southern areas, not only the mountain is many, and summer rainwater is abundant, causes rock soil unit weight to increase and rock softening, reduces the shear strength of ground, produce water purification pressure and moving waterpower, wash away or the erosion toe of diving, the overlying rock of impervious layer soil has been played lubrication, it also produces buoyancy etc. to the superstratum when compiling stratification on the impervious layer end face.So, southern area, especially mountain area summer landslide take place frequently, it is unfavorable to bring for local people's traffic, personal safety.Early August in this year, the typhoon sea anemone attacks southern coastal cities.The wind-induced heavy showers of platform makes the Zhoushan reservoir dam failure, causes that tens of people are dead, many people are injured.It mainly is owing to seep water, come down that this dam collapses.Because reservoir is positioned at half way up the mountain, near village has nearly 2/3rds to be buried, and loses huge.We should recognize necessity, the importance of slope treatment from current accident, accelerate the isostructural research steps of antislide pile.
At present to the control on landslide take gear as main, utilize a gear gliding mass such as antislide pile, anchor pole, antiskid retaining wall, good ground.Antislide pile is as a kind of stake of stable landslide, effect is remarkable, but antislide pile in the market has concrete pile, reinforced concrete pile and piling bar with regard to its material, and these antislide pile tensile properties are poor or corrosion resistance is poor, and its transmission coefficient is often 10
-7Below the m/s, and sliding mass leading edge transmission coefficient is larger, often greater than 10
-5M/s, therefore, the relative gliding mass of reinforced concrete anti-slide pile is water barrier, the result is that the intensive campshed of sloping body middle and lower part has formed virtually vertically every oozing wall, stop from sloping body trailing edge and compile and the underground water that comes can not get timely drainage, and then raised the groundwater table of sloping body middle front part, increased the saturation ratio of the sliding mass regional area soil body, cause gliding mass gravity to increase, sliding comprehensive cohesion and the angle of internal friction be with descends, and anti-skid power reduces, and sliding force increases, increased to a certain extent the potential danger on landslide, the comprehensive antiskid effect of antislide pile reduces.
At present anchor pole is commonly used to reinforcing side slope also the time, but existing anchor draws and contains following shortcoming: the anchor pole cross section is uniform section, and the adhesion strength between mortar is not high; The anchor pole material therefor is mainly reinforcing bar, Chang Yingang muscle corrosion and losing efficacy; The own wt of anchor pole is larger, constructional difficulties; Anchor pole conducts electricity easily, can cause underground dust explosion etc.
Summary of the invention
Technical problem to be solved by this invention provides a kind of flexural strength that integrates antiskid and draining and improved pile body, improves simultaneously that the novel slope supporting anchor of snap-in force and frictional force draws antislide pile between anchor pole and the mortar
The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of novel slope supporting anchor draws antislide pile, comprise the cylindrical shape pile body, be provided with cylindrical cavity in the described pile body, be evenly equipped with vertically several treatment holes on the described pile body, be provided with gutter in the described cylindrical cavity, the gap of described cylindrical cavity is filled with rubble, and the delivery port of described gutter is connected with the vacuum pump of outside; Comprise that also the cross section is circular anchor bar body, described anchor bar body passes described pile body, angle between described anchor bar body and the described pile body is 15-25 °, described anchor bar body comprises some sections coaxial integrated body of rod sections, and the diameter of described body of rod section reduces to the bar tail successively along the bar head of the body of rod.
Be vertically arranged with several carbon fibre bars in the pile lining of described pile body, described carbon fibre bar evenly distributes along the pile body cross-sectional periphery.
The both sides nose end of described treatment hole is enclosed with for the geotextiles that oppositely filters out impurities, and described treatment hole radially is interspersed along pile body.
Described vacuum pump is connected with the valve that is used for controlling the gutter pump-out, and described pile body adopts concrete material to be made.
The diameter of the described body of rod section of close described anchor pole body rod head is 250-350mm, and the diameter of described body of rod section reduces 15-25mm along the bar head of anchor bar body successively to the bar tail.
Described anchor bar body comprises coaxial successively integrated the first body of rod section, the second body of rod section and the 3rd body of rod section, the diameter of described the first body of rod section is 300mm, the diameter of described the second body of rod section and described the 3rd body of rod section reduces 20mm successively, the length of described the first body of rod section and described the second body of rod section is 2.5-5m, and described the 3rd body of rod segment length is 4.5-10m.
Described anchor bar body adopts carbon fibre material to make.Can improve corrosion resistance and anti-fatigue performance.
Described anchor bar body is hollow rod body, and described hollow parts tamps with mortar.Can reduce the own wt of anchor pole, the convenient construction operation.
The bar tail place of described anchor bar body has been provided with threaded steel pipe, and cover has disc on the described threaded steel pipe, and the lateral surface of described disc is connected with nut, the outer wall close contact of the medial surface of described disc and described pile body.
It is conical that the bar head of described anchor bar body is.Can better insert in the mortar.
Compared with prior art, the invention has the advantages that: a kind of novel slope supporting anchor of the present invention draws antislide pile, comprise the cylindrical shape pile body, be provided with cylindrical cavity in the pile body, axially be evenly equipped with several treatment holes along pile body on the pile body, be provided with gutter in the cylindrical cavity, the gap of cylindrical cavity is filled with rubble, the delivery port of gutter is connected with outside vacuum pump, and the pile body cavity is filled up by rubble, and this rubble not only can draining but also can have been improved the pile body flexural strength; Also comprise the anchor bar body that passes pile body, comprise some sections coaxial integrated body of rod sections, the diameter of body of rod section reduces to the bar tail successively along the bar head of anchor bar body, strengthen the mode of anchor rod body diameter by compartment, increase snap-in force and frictional force between anchor pole and the mortar, improve the adhesion strength between anchor pole and mortar.Its advantage is as follows:
(1) antislide pile has higher bending rigidity: conventional steel reinforced concrete hollow shell pill bending rigidity is low, easy to crack, is difficult to be applied to the slope supporting structure.And the present invention is filled by rubble owing to the pile tube hollow parts, and its bending rigidity is suitable with traditional entity stake, therefore can apply in side slope consolidation projects;
(2) antislide pile possesses drain function: rubble is filled the pile tube hollow parts and is formed the rubble accumulation body, can be used as good drainage channel;
(3) antislide pile and anchor pole have stronger resistance to corrosion: substitute traditional anchor with fiber-like material and draw reinforcing bar in the antislide pile, both satisfied the tensile property requirement, solved again the corrosion of steel bar problem;
(4) adhesion strength is high between anchor pole and mortar: not isometrical hollow fibre anchor pole has tensile strength height, good corrosion resistance, from heavy and light, the characteristics such as designability is strong, anti-fatigue performance good, anti-electromagnetic effect is little.
In sum, anchor of the present invention draws antislide pile, a kind of integrate antiskid, draining and anchoring and can corrosion resistant novel side slope retaining structure, change that traditional anchor draws that the antislide pile tensile property is low, the shortcoming of poor permeability, corrosion-resistant, hollow structure also can play a role in the drainage, and can reduce the flowing pressure of slope soil, and not isometrical hollow fibre anchor pole has improved the anchoring strength of anchor pole, reduced the potential danger on landslide, significantly improved anchor and drawn the comprehensive antiskid effect of antislide pile.
Description of drawings
Fig. 1 is the structural representation that anchor of the present invention draws the pile body of antislide pile;
Fig. 2 is Fig. 1 A-A ' cross-sectional view;
Fig. 3 is the B-B ' cross-sectional view of Fig. 1;
Fig. 4 is the C-C ' cross-sectional view of Fig. 1;
Fig. 5 is the anchor bar body structural representation that anchor of the present invention draws antislide pile;
Fig. 6 is the local D enlarged drawing of Fig. 5;
Fig. 7 is the structural representation that anchor of the present invention draws antislide pile draining support system.
The specific embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
One, specific embodiment
A kind of novel slope supporting anchor of the present invention draws antislide pile, as shown in Figure 1, comprise cylindrical shape pile body 1, be provided with cylindrical cavity in the pile body 1, be evenly equipped with vertically several treatment holes 2 on the pile body 1, be provided with gutter 3 in the cylindrical cavity, the gap of cylindrical cavity is filled with rubble 4, and the delivery port of gutter 3 is connected (as shown in Figure 7) with the vacuum pump 5 of outside, comprises that also the cross section is circular anchor bar body 9, anchor bar body 9 passes pile body 1, as shown in Figure 7, the angle between anchor bar body 9 and the pile body 1 is 15-25 °, as shown in Figure 5, anchor bar body 9 comprises some sections coaxial integrated body of rod sections, and the diameter of body of rod section reduces to the bar tail successively along the bar head of the body of rod.
In this specific embodiment, such as Fig. 2, Fig. 3 and shown in Figure 4, be vertically arranged with several carbon fibre bars 6 in the pile lining of pile body 1, carbon fibre bar 6 evenly distributes along pile body 1 cross-sectional periphery; The both sides nose end for the treatment of hole 2 is enclosed with for the geotextiles 7 that oppositely filters out impurities; Treatment hole 2 radially is interspersed along pile body 1.
In this specific embodiment, vacuum pump 5 is connected (as shown in Figure 7) with the valve 8 that is used for controlling the gutter pump-out; Pile body 1 adopts concrete material to be made.
In this specific embodiment, as shown in Figure 5, anchor bar body 9 comprises that the coaxial successively diameter of integrated the first body of rod section 10, the second body of rod section 11, the 3rd body of rod section 12, the first body of rod section 10 is 300mm, the diameter of the second body of rod section 11, the 3rd body of rod section 12 reduces successively 20mm(and is respectively 280mm, 260mm), the length of the first body of rod section 10 and the second body of rod section 11 is 2.5-5m, and the 3rd body of rod section 12 length are 4.5-10m.The concrete numerical value of the length of body of rod section can be adjusted according to actual demands of engineering, to improve the scope of application of this kind anchor pole.
In this specific embodiment, as shown in Figure 2, anchor bar body 9 adopts carbon fibre material to make; Anchor bar body 9 is hollow rod body, and hollow parts tamps with mortar; The bar tail place of anchor bar body 9 has been provided with threaded steel pipe 13, and cover has disc 14 on the threaded steel pipe 13, and the lateral surface of disc 14 is connected with nut 15, and this disc 14 adopts steel to be made, and is shaped as square, rectangle or disc.It is conical that the bar head of anchor bar body 9 is.
In addition to the implementation, anchor bar body 9 also comprises 6 sections, 8 sections or 10 sections coaxial integrated body of rod sections, near the diameter of the body of rod section of bar head be 250,320,350mm, any number in the 250-350mm all can, the diameter of body of rod section reduces 15mm, 25mm, 22mm along the bar head of the body of rod 1 successively to the anchoring section afterbody, and any number in the 15-25mm all can.
Two, antislide pile use procedure
Mechanical hole building or manually digging hole are adopted in the construction of this antislide pile, and its Specific construction program is as follows:
Whether 1, try first drilling construction, the quantity of examination pore-forming is no less than two, in order to check geologic information, check selected equipment, construction technology and technical requirements suitable, checks simultaneously and revise construction technical data.As necking down occurs, the hole that collapses, back-silt, hang pin or the situations such as drift sand, groundwater run off be large occur, can not meet design requirement, or increase difficulty of construction, when not reaching construction period, should reformulate constructure scheme, consider new construction technology, even select the stake type be more suitable for.
2, after satisfying requirements, mechanical hole building or manually digging hole, and clear hole.
3, lower pile tube.Because antislide pile and anchor bar body 9 will be united use, thus will be at pile body 1 preformed hole when prefabricated antislide pile, and so that anchor pole is combined closely by this hole and pile body 1, it is fixed that the size and number in hole can be come according to actual demands of engineering.
4, ejectment water pipe 3 terminal height should be lower than hollow pile body 1 bottom degree.
5, as shown in Figure 7, the stake internal water accumulation utilizes siphon principle by the ponding Natural excrement at the bottom of extending by gutter 3 with vacuum pump 5.
When 6, having ready conditions, and the electronic water level warning device is set, when stake ponding surpasses slide plane 16, then vacuum pump 5 begins to draw water, and closes first gutter 3 front end valves 8 before drawing water, and treats the complete set solid water pipe 3 of water, open valve 8, close vacuum pump 5, the stake internal water accumulation will be discharged under siphonage automatically, save the energy.
9, at objective mechanical hole buildings such as massif or dams, anchor bar body 9 is put into the hole by embedding in advance antislide pile preformed hole, then by automatic device anchor bar body 9 diameters are expanded to pre-provisioning request.Every spacing 50cm is provided with the hole of two φ 10 on the anchor rod body 1, so that during pressure grouting, cement mortar can be clamp-oned in the soil from hole, to reinforce the soil body around the anchor bar body 9.After anchor bar body 9 is squeezed into and put in place, with the pressure of 1.0Mpa cement mortar is poured in the body of rod 1.In addition, the space around anchor pole and the hole is closely knit with the C20 Concrete Filled, and at anchor pole afterbody insertion threaded steel pipe 13, threaded steel pipe 13 insertion depths are 15-20cm, after concrete setting disc 14 are placed in threaded steel pipe 13, screw tight nut 15.
10, rubble is inserted pile body 1 cavity.
Above-mentioned work progress is by ejectment water pipe 3, so that compile and the underground water that comes has obtained timely drainage from sloping body trailing edge, and then reduced the groundwater table of sloping body middle front part, overcome the defective of traditional reinforced concrete anti-slide pile poor permeability, poor durability, reduce the potential danger on landslide, significantly improved the comprehensive antiskid effect of antislide pile.
Design principle of the present invention is:
(1) corrosion resistance design: carbon fibre material has tensile strength height, good corrosion resistance, from heavy and light, the characteristics such as designability is strong, anti-fatigue performance good, anti-electromagnetic effect is little.So the present invention intends adopting the reinforcing bar in carbon fiber class material substitution antislide pile and the anchor pole, thereby solve that traditional anchor draws the muscle corrosion of antislide pile invar and the problem that lost efficacy.
(2) Drainage Design: reserve at a certain distance treatment hole along pile body, nose end is made loaded filter and with the geotextiles wrapping, is prevented and treated and stop up.Then be prefabricated into the antislide pile tube coupling, intending reinforcing side slope employing machine drilling or manually digging hole, the hollow antislide pile tube coupling of lower prefabricated carbon fiber reinforced concrete is to cutting depth, and hollow parts is filled with rubble, and the ejectment water pipe, in the drainability that guarantees to strengthen under the good prerequisite of pile body flexing resistance stake.
(3) anchor rod anchored section design: adopt compartment to strengthen the mode of fiber anchor rod anchoring section diameter, increase snap-in force and frictional force between anchor pole and the mortar, improve the adhesion strength between fiber anchor rod and mortar.
(4) hollow area and carbon fibre bar consumption design: this antislide pile cross section hollow area size and quantity of reinforcement are according to calculative determination, and cross section tension, resistance to compression area should satisfy code requirement.
Above-described embodiment is that the present invention is further explained, and protection scope of the present invention is as the criterion with claims.
Claims (10)
1. a novel slope supporting anchor draws antislide pile, comprise the cylindrical shape pile body, be provided with cylindrical cavity in the described pile body, it is characterized in that: be evenly equipped with vertically several treatment holes on the described pile body, be provided with gutter in the described cylindrical cavity, the gap of described cylindrical cavity is filled with rubble, and the delivery port of described gutter is connected with the vacuum pump of outside; Comprise that also the cross section is circular anchor bar body, described anchor bar body passes described pile body, angle between described anchor bar body and the described pile body is 15-25 °, described anchor bar body comprises some sections coaxial integrated body of rod sections, and the diameter of described body of rod section reduces to the bar tail successively along the bar head of the body of rod.
2. a kind of novel slope supporting anchor according to claim 1 draws antislide pile, and it is characterized in that: be vertically arranged with several carbon fibre bars in the pile lining of described pile body, described carbon fibre bar evenly distributes along the pile body cross-sectional periphery.
3. a kind of novel slope supporting anchor according to claim 1 draws antislide pile, and it is characterized in that: the both sides nose end of described treatment hole is enclosed with for the geotextiles that oppositely filters out impurities, and described treatment hole radially is interspersed along pile body.
4. each described novel slope supporting anchor draws antislide pile according to claim 1-3, it is characterized in that: described vacuum pump is connected with the valve that is used for controlling the gutter pump-out, and described pile body adopts concrete material to be made.
5. a kind of novel slope supporting anchor according to claim 1 draws antislide pile, it is characterized in that: the diameter of the described body of rod section of close described anchor pole body rod head is 250-350mm, and the diameter of described body of rod section reduces 15-25mm along the bar head of anchor bar body successively to the bar tail.
6. a kind of novel slope supporting anchor according to claim 5 draws antislide pile, it is characterized in that: described anchor bar body comprises coaxial successively integrated the first body of rod section, the second body of rod section and the 3rd body of rod section, the diameter of described the first body of rod section is 300mm, the diameter of described the second body of rod section and described the 3rd body of rod section reduces 20mm successively, the length of described the first body of rod section and described the second body of rod section is 2.5-5m, and described the 3rd body of rod segment length is 4.5-10m.
7. a kind of novel slope supporting anchor according to claim 1 draws antislide pile, it is characterized in that: described anchor bar body adopts carbon fibre material to make.
8. a kind of novel slope supporting anchor according to claim 1 draws antislide pile, and it is characterized in that: described anchor bar body is hollow rod body, and described hollow parts tamps with mortar.
9. a kind of novel slope supporting anchor according to claim 1 draws antislide pile, it is characterized in that: the bar tail place of described anchor bar body has been provided with threaded steel pipe, cover has disc on the described threaded steel pipe, the lateral surface of described disc is connected with nut, the outer wall close contact of the medial surface of described disc and described pile body.
10. each described a kind of novel slope supporting anchor draws antislide pile according to claim 1-9, it is characterized in that: the bar head of described anchor bar body is conical.
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| CN201210440062.5A CN102953389B (en) | 2012-11-07 | 2012-11-07 | A kind of slope supporting anchor draws antislide pile |
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| CN201210440062.5A CN102953389B (en) | 2012-11-07 | 2012-11-07 | A kind of slope supporting anchor draws antislide pile |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266594A (en) * | 2013-05-21 | 2013-08-28 | 中南大学 | Slide-resistant pile |
| CN103290853A (en) * | 2013-05-21 | 2013-09-11 | 中南大学 | Slide-resistant pile capable of monitoring side-slope underground water level |
| CN103321233A (en) * | 2013-07-04 | 2013-09-25 | 中铁西北科学研究院有限公司 | Slope deep draining and in-slope underground water recycling device and manufacturing method |
| CN104372790A (en) * | 2014-11-26 | 2015-02-25 | 南京赛伯通建筑工程有限公司 | Fiber reinforced composite material rib concrete drainage pipe pile |
| CN104674802A (en) * | 2015-01-26 | 2015-06-03 | 重庆大学 | Prestressed gravel anchoring pile and landslide control construction method thereof |
| CN104895094A (en) * | 2015-05-18 | 2015-09-09 | 三峡大学 | Automatic water level adjusting drainage anti-slide pile and construction method thereof |
| CN105714769A (en) * | 2016-03-17 | 2016-06-29 | 中国水利水电第十一工程局有限公司 | Construction method for anti-sliding cast-in-place pile |
| CN109629582A (en) * | 2019-01-16 | 2019-04-16 | 河南省交通规划设计研究院股份有限公司 | A kind of abnormity draining friction pile and its construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103266594A (en) * | 2013-05-21 | 2013-08-28 | 中南大学 | Slide-resistant pile |
| CN103290853A (en) * | 2013-05-21 | 2013-09-11 | 中南大学 | Slide-resistant pile capable of monitoring side-slope underground water level |
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| CN104372790A (en) * | 2014-11-26 | 2015-02-25 | 南京赛伯通建筑工程有限公司 | Fiber reinforced composite material rib concrete drainage pipe pile |
| CN104674802A (en) * | 2015-01-26 | 2015-06-03 | 重庆大学 | Prestressed gravel anchoring pile and landslide control construction method thereof |
| CN104895094A (en) * | 2015-05-18 | 2015-09-09 | 三峡大学 | Automatic water level adjusting drainage anti-slide pile and construction method thereof |
| CN105714769A (en) * | 2016-03-17 | 2016-06-29 | 中国水利水电第十一工程局有限公司 | Construction method for anti-sliding cast-in-place pile |
| CN109629582A (en) * | 2019-01-16 | 2019-04-16 | 河南省交通规划设计研究院股份有限公司 | A kind of abnormity draining friction pile and its construction method |
| CN109629582B (en) * | 2019-01-16 | 2024-01-30 | 河南省交通规划设计研究院股份有限公司 | Special-shaped drainage slide-resistant pile and construction method thereof |
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| CN102953389B (en) | 2015-08-12 |
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